The model, who graduated with a double first in History of Art from Cambridge University, hopes to add dramatic stained glass windows to the split-level flat in St Pancras Chambers, a Grade I listed building.

Miss Cole, who has applied to Camden Council for permission to make the changes, is also hoping to move her shower room, after suffering "constant plumbing problems" in its current position. Documents lodged with the council state its location "blocks natural light" and is far away from the main service riser of the building.

The one-time face of Marks & Spencer moved into the £1m apartment above St Pancras station, London, last year. The building, developed Harry Handelsman of the Manhattan Loft Corporation, was opened in 2010 following a £200m development.

Planning documents for Miss Cole state the current storage loft is too "awkward" for her to access and is deemed a "poor use of space".

"The existing gallery mezzanine floor is very small and cannot be used for any particular purpose, again a poor use of space," it added.

"The proposed design looks to connect these two spaces through a balcony link via the entrance hallway creating a unique 'Romeo and Juliette' (sic) balcony which will add a sense of theatre and eccentricity that embodies Sir Gilbert Scott's work.

"The new mezzanine will provide a walk-in wardrobe for the newly formed bedroom where the existing mezzanine is, and a new ensuite located above the existing bathroom on the lower level."

A spokeswoman for the Manhattan Loft Corporation said: "We would always address any issue. We have not been made aware of any problems in the building at present."